bittee



C. REGENBOGEN AND P. A. BITTER. WORKING CYLINDER FOR [NTERNAL COMBUSTION ENGINES. APPLlCATlON EILED MAY 22. 1915. RENEWED OCT. 25. 1918.

1 65,494. Patented June 3, 1919 3m, i@ W O CONRAD REGENBOGEN AN D PAUL A. BITTER, OF KIEL, GERMANY,

WORKING CYLINDER FOR INTERNAL-COMBUSTION GINES.

Application filed May 22, 1915, Serial No. 29,832. Renewed October To all whom it may concern Be it known that we, CONRAD RnoENnooeN flnClPAUL A. BITTER, citizens of the German Empire, residing at Kiel, Germany, have invented certain new and useful Improvements -in Working Cylinders for Internal-Cont tions is omitted, this bnstion Engines, of which the following is a specification.

The present invention relates to an. improvement in the working cylinder for internal combustion engines disclosed in patent application Serial No. 808,590 filed December 24, 1913.

In the accompanying drawing, one embodiment of the invention has been shown, the figure illustrating a, vertical section of 'the upper portion of the Working cylinder for an upright Diesel motor of large di mensions.

The working cylinder consists of an outer cylinderA and an inner cylinder B c0nnected thereto by means of screws D.

In accordance withthe invention the portion of the inner cylinder forming theruuning sleeve for thepiston is shown with the cap shaped covering integral therewith. The advantage of this arrangement resides therein that the joint between these two'porcult to make tight in large cylinders.

The valve F is arranged, similarly to what is the case in the above-namedspecification,

that'isto say, the valve F is inserted in the borings formed in the outer cylinder A and the inner cylinder B respectively and the valve gland is threaded in the boring of the inner cylinder B, while it is movable in Specification of Letters ZEatent.

oint being very diili Patented June 3, 11939. as; 1918. Serial No. 259,718.

the outer cylinder A, so that axial. and radial expansion of the inner cylinder will not be prevented by it. 4

. If the inner cylinder is produced from steel, a lining of cast iron should be inserted in a well-known manner in its cylindrical portion.

We claim l. A working cylinder for internal combustion engines having an inner cylinder and an outer cylinder surrounding the same, and means for securing the inner cylinder in the outer one, permitting axial, as well as radial displacement between the tw0 cylinders, said inner cylinder having integral therewith a cap closing one end thereof.

2. A working cylinder for internal corn bustion engines having an inner cylinder and an outer cylinder surrounding the same, andemeans for securing the inner cylinder in the vouter one, perm'ltting axial, as Well as radial displacement between the two cylinders, said inner cyli idehaving integral therewith a cap closing" one end th reof, a valve secured insaid cap and extending through the wall of said outercylinder so as' to permit displacement between said cap and said outer cylinder. 4

In testimony'whercof the foregoing 'speci: fication is signed in the presence DQSSBS.

CONRAD RneENBoeEN. PAUL a. BITTER.

Witnesses: i

. JULIUS Borne,

LARL GnUNwAuo,

of two wit- 

